Brush



Patented May 3, 1927.

UNITED STATESV CARL GRETHER, or ronrNAU, oEmvrAivY.`

BRUSH.

Application filed 'March 11, 1926,Se1ia1 No. 93,936,`and in Germany March 20, 1925.v

This invention relates to an improved brush or broom, and the novelty consists in that the folded bristle tufts forced through straight apertures in the bristle supporting back of the brush or broom are fixed each by means of a looped wire encircling the bight of the tuft and having its ends tangential to the loop while engaging the rear portion of the bristle supporting back to prevent outward displacement of the said bristle tuft, a binding wire running over the upper surface of the bristle supporting back and. passing successively through said looped wires. Besides, said tufts may be connected with the lower side of the bristle supporting back by means of a binding agent.

Said double binding permits the use of a bristle supporting back of very thin material, such as wood, sheet-metahor the like.

The accompanying drawing illustrates the improvements in fragmentary sectional views of a bristle supporting back withthe bristle tufts attached thereto: Fig. l show-- ing a thin wooden bristle supporting back,`

Fig. 2, a sheet-metal back, and Fig. 3 the i attachment by means of a binding agent.

As shown in Fig. 1, the bristle supporting back a is provided with straight apertures b into which the folded bristle tufts d enclosed by looped wires 'c are forced, the ends of said wires being tangential to the loops and engaging the rear portion of the b'ack to prev-ent outward displacement of the bristle tufts. A binding wire c running over the upper surface ofthe back (t and successively passing through the looped wires c prevents a displacement' of the bristle tufts in downward direction,

As shown in Fig. 2, the binding` on sheetmetal backs al is effected by punching there- The forcing. in of the bristle tufts enclosed by the loops and of the binding wire is suit# "ably effected in one working process.y

As shown in Fig. 3,'` the downward dis-l 55 placement of the bristle tufts d2 can also be prevented by connecting the latter with the lower side of the back azby means of a y binding agent g. Said latter Vexpedient can be used in combination with the binding wire e2 running over the upper surface of the back and successively passing through they single loops. i

Vl. A brush, comprisingv a bristle supporting back having a plurality of bristle receiving apertures, folded tufts yof bristles in said apertures, each tuft having a looped wirev encircling its bight, said wire having its ends tangential to the loop and engaging the rear portion of the back to prevent outward displacement of said bristle tuft7 and 4a binding wire running over vthe upper surface ofthe back and successively passing through .said looped wires.

if. In a brush as specified inl claim l, a binding agent connecting said bristle tufts `with the lower side of said bristle support-A ing back. N

In testimony whereof I have hereunto setv my hand.

' CARL GRETHER. 

